http 请求的header头信息

Question

Remote Address:124.202.164.142:80
Request URL:http://segmentfault.com/
Request Method:GET
Status Code:200 OK
Request Headersview source
Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8
Accept-Encoding:gzip,deflate,sdch
Accept-Language:zh-CN,zh;q=0.8
Cache-Control:max-age=0
Connection:keep-alive
Cookie:_gat=1; _ga=GA1.2.1099486702.1411027009; Hm_lvt_e23800c454aa573c0ccb16b52665ac26=1414633382,1414642258,1414717252,1414723517; Hm_lpvt_e23800c454aa573c0ccb16b52665ac26=1414727853; PHPSESSID=i2aistit0cidn5d0l1pok0tca0
Host:segmentfault.com
Referer:http://segmentfault.com/user/notifications
User-Agent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.111 Safari/537.36
Response Headersview source
Cache-Control:no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Connection:keep-alive
Content-Encoding:gzip
Content-Type:text/html; charset=UTF-8
Date:Fri, 31 Oct 2014 03:58:06 GMT
Expires:Thu, 19 Nov 1981 08:52:00 GMT
Pragma:no-cache
Server:ASERVER/1.2.9-3
Set-Cookie:PHPSESSID=i2aistit0cidn5d0l1pok0tca0; expires=Sun, 30-Nov-2014 03:58:05 GMT; Max-Age=2592000; path=/
Transfer-Encoding:chunked
X-Powered-By:PHP/5.5.9-1ubuntu4.3
X-Powered-By-Anquanbao:MISS from dxt-bj-sj-s91

X-Powered-By:PHP/5.5.9-1ubuntu4.3 是不是足以说明本网站是PHP开发的，服务器的操作系统是Ubuntu？？

Answer 1

一般来说是，不过不保证有人无聊到去构造这个头欺骗你...

Answer 2

“X-Powered-By:PHP/5.5.9-1ubuntu4.3 是不是足以说明本网站是PHP开发的，服务器的操作系统是Ubuntu？？”
常规的来讲，是这样的。
但是，header信息，都是可以手动构造的